/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:54:36,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:54:36,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:54:36,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:54:36,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:54:36,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:54:36,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:54:36,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:54:36,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:54:36,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:54:36,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:54:36,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:54:36,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:54:36,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:54:36,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:54:36,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:54:36,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:54:36,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:54:36,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:54:36,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:54:36,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:54:36,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:54:36,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:54:36,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:54:36,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:54:36,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:54:36,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:54:36,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:54:36,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:54:36,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:54:36,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:54:36,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:54:36,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:54:36,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:54:36,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:54:36,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:54:36,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:54:36,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:54:36,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:54:36,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:54:36,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:54:36,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 16:54:36,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:54:36,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:54:36,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:54:36,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:54:36,649 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:54:36,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:54:36,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:54:36,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:54:36,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:54:36,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:54:36,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:54:36,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:54:36,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:54:36,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:54:36,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:54:36,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:54:36,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:54:36,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:54:36,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:54:36,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:54:36,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:54:36,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:36,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:54:36,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:54:36,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:54:36,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:54:36,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:54:36,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:54:36,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:54:36,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:54:37,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:54:37,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:54:37,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:54:37,095 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:54:37,096 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:54:37,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2020-10-28 16:54:37,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64a6e931a/fafa50d6bf224ba99fa12883d79b2d0b/FLAG7e59ba657 [2020-10-28 16:54:37,911 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:54:37,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2020-10-28 16:54:37,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64a6e931a/fafa50d6bf224ba99fa12883d79b2d0b/FLAG7e59ba657 [2020-10-28 16:54:38,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64a6e931a/fafa50d6bf224ba99fa12883d79b2d0b [2020-10-28 16:54:38,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:54:38,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:54:38,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:38,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:54:38,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:54:38,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa82089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38, skipping insertion in model container [2020-10-28 16:54:38,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:54:38,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:54:38,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:38,560 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:54:38,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:38,723 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:54:38,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38 WrapperNode [2020-10-28 16:54:38,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:38,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:54:38,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:54:38,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:54:38,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... [2020-10-28 16:54:38,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:54:38,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:54:38,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:54:38,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:54:38,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:38,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:54:38,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:54:38,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:54:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:54:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:54:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:54:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:54:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:54:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:54:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:54:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:54:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:54:38,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:54:38,967 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:54:38,967 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:54:38,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:54:38,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:54:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:54:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:54:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:54:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:54:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:54:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:54:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:54:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:54:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:54:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:54:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:54:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:54:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:54:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:54:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:54:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-28 16:54:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:54:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:54:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:54:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:54:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:54:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:54:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:54:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:54:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:54:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:54:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:54:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:54:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:54:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:54:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:54:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:54:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:54:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:54:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:54:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:54:38,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:54:38,987 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:54:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:54:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:54:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:54:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:54:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:54:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:54:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:54:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:54:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:54:38,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:54:38,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:38,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:54:38,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:54:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:54:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:54:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:54:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:54:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:54:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:54:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:54:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-28 16:54:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:54:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:54:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:54:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:54:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:54:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:54:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:54:40,348 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:54:40,348 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:54:40,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:40 BoogieIcfgContainer [2020-10-28 16:54:40,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:54:40,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:54:40,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:54:40,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:54:40,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:54:38" (1/3) ... [2020-10-28 16:54:40,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dd0f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:40, skipping insertion in model container [2020-10-28 16:54:40,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:38" (2/3) ... [2020-10-28 16:54:40,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dd0f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:40, skipping insertion in model container [2020-10-28 16:54:40,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:40" (3/3) ... [2020-10-28 16:54:40,365 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2020-10-28 16:54:40,381 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:54:40,387 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:54:40,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:54:40,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:54:40,444 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:54:40,444 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:54:40,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:54:40,446 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:54:40,446 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:54:40,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:54:40,447 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:54:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-28 16:54:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:54:40,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:40,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:40,492 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:40,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:40,498 INFO L82 PathProgramCache]: Analyzing trace with hash 621238521, now seen corresponding path program 1 times [2020-10-28 16:54:40,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:40,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610186867] [2020-10-28 16:54:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:41,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:43,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:43,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:54:43,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3066 [2020-10-28 16:54:43,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:43,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:43,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:54:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:43,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 16:54:44,703 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:44,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 16:54:44,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:44,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:44,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:44,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:44,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:44,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:44,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:44,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:44,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:44,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:44,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:44,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:44,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:44,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:54:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:44,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:54:44,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:44,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:44,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:44,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:44,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:44,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:44,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:44,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:44,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:44,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:44,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:44,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:44,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610186867] [2020-10-28 16:54:44,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:44,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:54:44,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908537504] [2020-10-28 16:54:44,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:54:44,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:44,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:54:44,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:44,938 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2020-10-28 16:54:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:46,581 INFO L93 Difference]: Finished difference Result 273 states and 357 transitions. [2020-10-28 16:54:46,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:54:46,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:54:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:46,608 INFO L225 Difference]: With dead ends: 273 [2020-10-28 16:54:46,609 INFO L226 Difference]: Without dead ends: 146 [2020-10-28 16:54:46,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-28 16:54:46,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2020-10-28 16:54:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-28 16:54:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2020-10-28 16:54:46,703 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 53 [2020-10-28 16:54:46,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:46,704 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2020-10-28 16:54:46,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:54:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2020-10-28 16:54:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:54:46,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:46,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:46,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:54:46,709 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash 732222427, now seen corresponding path program 1 times [2020-10-28 16:54:46,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:46,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190721109] [2020-10-28 16:54:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:46,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:46,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:46,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:54:50,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:50,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3393 [2020-10-28 16:54:50,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:50,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:54:50,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:54:50,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,551 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:50,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 16:54:50,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:50,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:54:50,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:54:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:54:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:54:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:50,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:50,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:50,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:50,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:50,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190721109] [2020-10-28 16:54:50,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:50,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:54:50,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810017299] [2020-10-28 16:54:50,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:54:50,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:50,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:54:50,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:54:50,681 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand 4 states. [2020-10-28 16:54:51,275 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:54:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:52,215 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2020-10-28 16:54:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:52,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:54:52,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:52,218 INFO L225 Difference]: With dead ends: 199 [2020-10-28 16:54:52,219 INFO L226 Difference]: Without dead ends: 130 [2020-10-28 16:54:52,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-28 16:54:52,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2020-10-28 16:54:52,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 16:54:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2020-10-28 16:54:52,264 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 54 [2020-10-28 16:54:52,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:52,264 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2020-10-28 16:54:52,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:54:52,265 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2020-10-28 16:54:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 16:54:52,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:52,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:52,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:54:52,268 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:52,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:52,268 INFO L82 PathProgramCache]: Analyzing trace with hash 881634957, now seen corresponding path program 1 times [2020-10-28 16:54:52,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:52,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980384908] [2020-10-28 16:54:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:52,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:53,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:53,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 16:54:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:54:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1598 [2020-10-28 16:54:53,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:53,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:54:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:54:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,321 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:54,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:54,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 16:54:54,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:54,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:54:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:54,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:54,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:54,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:54:54,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:54:54,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:54,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:54,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:54,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:54,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:54,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:54,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:54,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:54,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:54,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:54,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:54,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 16:54:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:54,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:54,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980384908] [2020-10-28 16:54:54,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:54,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:54:54,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937247768] [2020-10-28 16:54:54,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:54:54,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:54,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:54:54,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:54,561 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 5 states. [2020-10-28 16:54:55,013 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:55,989 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2020-10-28 16:54:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:55,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-28 16:54:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:55,994 INFO L225 Difference]: With dead ends: 212 [2020-10-28 16:54:55,994 INFO L226 Difference]: Without dead ends: 130 [2020-10-28 16:54:55,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:54:55,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-28 16:54:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2020-10-28 16:54:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 16:54:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-10-28 16:54:56,047 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 59 [2020-10-28 16:54:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:56,047 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-10-28 16:54:56,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:54:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-10-28 16:54:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 16:54:56,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:56,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:56,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:54:56,056 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:56,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1518105728, now seen corresponding path program 1 times [2020-10-28 16:54:56,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:56,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484954714] [2020-10-28 16:54:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:56,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 16:54:56,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 849 [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 16:54:56,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,381 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:57,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 16:54:57,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:54:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:57,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:57,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:54:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:54:57,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:57,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 16:54:57,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:54:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 16:54:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:57,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 16:54:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 16:54:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:57,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:54:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:57,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484954714] [2020-10-28 16:54:57,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:57,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:54:57,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816177814] [2020-10-28 16:54:57,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:54:57,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:57,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:54:57,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:54:57,693 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 8 states. [2020-10-28 16:54:58,240 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:59,914 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:55:00,395 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:55:00,844 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:55:01,273 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:01,815 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:55:02,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:02,500 INFO L93 Difference]: Finished difference Result 318 states and 414 transitions. [2020-10-28 16:55:02,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:55:02,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-28 16:55:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:02,507 INFO L225 Difference]: With dead ends: 318 [2020-10-28 16:55:02,507 INFO L226 Difference]: Without dead ends: 236 [2020-10-28 16:55:02,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:55:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-28 16:55:02,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 185. [2020-10-28 16:55:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-28 16:55:02,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2020-10-28 16:55:02,578 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 67 [2020-10-28 16:55:02,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:02,578 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2020-10-28 16:55:02,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:55:02,578 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2020-10-28 16:55:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 16:55:02,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:02,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:55:02,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:55:02,581 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:02,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:02,582 INFO L82 PathProgramCache]: Analyzing trace with hash 138050822, now seen corresponding path program 1 times [2020-10-28 16:55:02,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:02,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034707026] [2020-10-28 16:55:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:55:02,627 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:55:02,628 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:55:02,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:55:02,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:55:02 BoogieIcfgContainer [2020-10-28 16:55:02,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:55:02,657 INFO L168 Benchmark]: Toolchain (without parser) took 24538.50 ms. Allocated memory was 125.8 MB in the beginning and 380.6 MB in the end (delta: 254.8 MB). Free memory was 99.7 MB in the beginning and 192.0 MB in the end (delta: -92.3 MB). Peak memory consumption was 162.6 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:02,658 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:55:02,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.55 ms. Allocated memory is still 125.8 MB. Free memory was 99.0 MB in the beginning and 78.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:02,660 INFO L168 Benchmark]: Boogie Preprocessor took 140.80 ms. Allocated memory is still 125.8 MB. Free memory was 78.4 MB in the beginning and 74.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:02,661 INFO L168 Benchmark]: RCFGBuilder took 1484.71 ms. Allocated memory was 125.8 MB in the beginning and 152.0 MB in the end (delta: 26.2 MB). Free memory was 74.5 MB in the beginning and 93.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:02,661 INFO L168 Benchmark]: TraceAbstraction took 22299.06 ms. Allocated memory was 152.0 MB in the beginning and 380.6 MB in the end (delta: 228.6 MB). Free memory was 93.3 MB in the beginning and 192.0 MB in the end (delta: -98.7 MB). Peak memory consumption was 129.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:02,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 597.55 ms. Allocated memory is still 125.8 MB. Free memory was 99.0 MB in the beginning and 78.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 140.80 ms. Allocated memory is still 125.8 MB. Free memory was 78.4 MB in the beginning and 74.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1484.71 ms. Allocated memory was 125.8 MB in the beginning and 152.0 MB in the end (delta: 26.2 MB). Free memory was 74.5 MB in the beginning and 93.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22299.06 ms. Allocated memory was 152.0 MB in the beginning and 380.6 MB in the end (delta: 228.6 MB). Free memory was 93.3 MB in the beginning and 192.0 MB in the end (delta: -98.7 MB). Peak memory consumption was 129.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L186] int waterLevel = 1; [L187] int methaneLevelCritical = 0; [L444] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L834] int splverifierCounter ; [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L838] int tmp___2 ; [L841] splverifierCounter = 0 [L843] COND TRUE 1 [L845] COND TRUE splverifierCounter < 4 [L851] tmp = __VERIFIER_nondet_int() [L853] COND TRUE \read(tmp) [L855] CALL waterRise() [L204] COND TRUE waterLevel < 2 [L205] waterLevel = waterLevel + 1 [L855] RET waterRise() [L861] tmp___0 = __VERIFIER_nondet_int() [L863] COND FALSE !(\read(tmp___0)) [L871] tmp___2 = __VERIFIER_nondet_int() [L873] COND FALSE !(\read(tmp___2)) [L879] tmp___1 = __VERIFIER_nondet_int() [L881] COND TRUE \read(tmp___1) [L888] CALL timeShift() [L662] COND FALSE !(\read(pumpRunning)) [L669] COND TRUE \read(systemActive) [L671] CALL processEnvironment() [L691] int tmp ; [L694] COND FALSE !(\read(pumpRunning)) [L709] FCALL processEnvironment__wrappee__base() [L671] RET processEnvironment() [L677] CALL __utac_acc__Specification3_spec__1() [L901] int tmp ; [L902] int tmp___0 ; [L903] int tmp___1 ; [L907] CALL, EXPR isMethaneLevelCritical() [L225] int retValue_acc ; [L228] retValue_acc = methaneLevelCritical [L229] return (retValue_acc); [L907] RET, EXPR isMethaneLevelCritical() [L907] tmp = isMethaneLevelCritical() [L909] COND FALSE !(\read(tmp)) [L913] CALL, EXPR getWaterLevel() [L257] int retValue_acc ; [L260] retValue_acc = waterLevel [L261] return (retValue_acc); [L913] RET, EXPR getWaterLevel() [L913] tmp___0 = getWaterLevel() [L915] COND TRUE tmp___0 == 2 [L917] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L917] RET, EXPR isPumpRunning() [L917] tmp___1 = isPumpRunning() [L919] COND FALSE !(\read(tmp___1)) [L923] CALL __automaton_fail() [L645] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product26.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 240 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 578 SDslu, 207 SDs, 0 SdLazy, 968 SolverSat, 360 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 67390 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...